Sample Design and Demographic Characteristics of Respondents in the 1999- 2000 National STD and Behavior Measurement ExperimentMaria A. Villarroel,Charles F. Turner, Elizabeth Eggleston,Alia Al-Tayyib,Villarroel MA,Turner CF,Eggleston E,Al-Tayyib A,Rogers SMmsra引用 22|浏览9暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要